"This document supersedes draft 'Building on Tradition' published for public consultation in March 2011. This final version takes account of comments received to the public consultation process" -- back cover.
Building on tradition : a sustainable design guide for the Northern Ireland countryside : supplementary planning guidance to PPS21, May 2012 by SLR Consulting. Published by Dept. of the Environment in 2012. Publication and catalogue information, links to buy online and reader comments.